| Official Name: | Wagner Township |
| Settlement Type: | Township |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Clayton |
| Area Total Km2: | 94.37 |
| Area Land Km2: | 94.37 |
| Area Water Km2: | 0 |
| Unit Pref: | Imperial |
| Area Total Sq Mi: | 36.44 |
| Area Land Sq Mi: | 36.44 |
| Area Water Sq Mi: | 0 |
| Area Water Percent: | 0 |
| Population As Of: | 2000 |
| Population Total: | 441 |
| Population Density Km2: | 4.7 |
| Population Density Sq Mi: | 12.1 |
| Elevation M: | 299 |
| Elevation Ft: | 981 |
| Coordinates: | 42.9569°N -91.4292°W |
| Blank Name: | GNIS feature ID |
| Blank Info: | 0468878 |
Wagner Township is a township in Clayton County, Iowa, United States. As of the 2000 census, its population was 441.
Wagner Township was organized in 1852. It is named for John Wagner, Sr., who settled there in 1846.[1]
Wagner Township covers an area of 36.44sqmi and contains one incorporated settlement, St. Olaf. According to the USGS, it contains nine cemeteries: Clark, Eno, Farmersburg-Wagner, Gooding, Johanningmeier, Norway, Patterson, United Brethren and Weymouth.
The streams of Howard Creek, Silver Creek and Wagner run through this township.